A gutsy performance from Polish side Unia Oświęcim, highlighted by a four-goal outburst in the third, stunned KAC Klagenfurt and their home crowd as the visitors earned a dramatic 5-4 comeback win over the Austrians. Oświęcim erased a three-goal deficit, producing four unanswered tallies to secure their first regulation victory and improve their chances of advancing to the postseason.

Klagenfurt's powerplay made its debut midway through the first period and the hosts wasted no time in utilising the extra attacker.

Johannes Bischofberger tucked home the first one just seconds into the man-advantage when Nicholas Petersen provided the perfect set-up as he weaved his way through traffic before sliding it across to Bischofberger.

Still on that same powerplay, it was Thomas Hundertpfund registering his second of the tournament when the captain wired a wrister far side past the stick of Linus Lundin to make it 2-0.

The Austrians continued dictating the play and by the end of the first, it was Klagenfurt outshooting Oświęcim 15-7.

Erik Ahopelto picked up the loose change in front as the Polish side cut into the hosts' lead on a 5-on-3 goal that came at 31:26. Florian Vorauer stopped the initial shot but couldn't get across in time to cover the cage as Ahopelto deposited it to get his side on the board.

Three minutes later, Klagenfurt recaptured their two-goal lead on a brilliant tic-tac-toe passing play that saw Petersen dish it to Fabian Hochegger who found Daniel Obersteiner with a cross crease feed that the forward lifted over Lundin to secure his team's third on the night.

The Austrians found the scoresheet a fourth time just two minutes into the third frame when David Maier registered his first tally of the tournament when he crept in short side to bunt it past Lundin to make it 4-1.

But the Polish side battled back in surprising fashion, scoring three in the span of two and a half minutes.

Leading scorer Krystian Dziubiński managed his fifth of the season when he got prime positioning near the top of the crease and let one go that beat Vorauer. Then Daniel Olsson Trkulja made it a 4-3 contest when he pounced on a rebound and lifted it stick side.

Oświęcim would eventually knot things up moments later when Henry Karjalainen went short side to beat Klagenfurt's netminder, and after trailing by three to start the third, the visitors mustered three unanswered tallies and shifted momentum to their side.

The Austrians' third-period collapse continued as the Poles secured their fifth on the night when Hampus Olsson whacked home a bouncing puck to give his club the lead for the first time in the contest.

In the dying minutes, Vorauer was removed in favour of the extra attacker, but Klagenfurt's attempt at finding the equaliser would fail as Oświęcim would complete their Herculean task and take the win.